"Return the `cdr' of the `cdr' of the `cdr' of the `cdr' of X."
(cdr (cdr (cdr (cdr x)))))
-(defun last* (x &optional n)
- "Returns the last link in the list LIST.
-With optional argument N, returns Nth-to-last link (default 1)."
- (if n
- (let ((m 0) (p x))
- (while (consp p) (incf m) (pop p))
- (if (<= n 0) p
- (if (< n m) (nthcdr (- m n) x) x)))
- (while (consp (cdr x)) (pop x))
- x))
+;;(defun last* (x &optional n)
+;; "Returns the last link in the list LIST.
+;;With optional argument N, returns Nth-to-last link (default 1)."
+;; (if n
+;; (let ((m 0) (p x))
+;; (while (consp p) (incf m) (pop p))
+;; (if (<= n 0) p
+;; (if (< n m) (nthcdr (- m n) x) x)))
+;; (while (consp (cdr x)) (pop x))
+;; x))
(defun butlast (x &optional n)
"Returns a copy of LIST with the last N elements removed."